N Nick New member Jun 13, 2009 #1 Show all of your work! First one with all correct answers get the best answer. 1) 3x^3 y^3-72x^2 y^4+432xy^5 2) -[6z-(12z+6)]=6+(5z+3)
Show all of your work! First one with all correct answers get the best answer. 1) 3x^3 y^3-72x^2 y^4+432xy^5 2) -[6z-(12z+6)]=6+(5z+3)
I imported_jimbot New member Jun 13, 2009 #2 3x^3 y^3-72x^2 y^4+432xy^5 (factor) = 3xy^3(x^2 - 24xy + 144y^2) = 3xy^3 * (x - 12y)^2 -[6z-(12z+6)]=6+(5z+3) -[-6z - 6] = 9 + 5z 6z + 6 = 9 + 5z z = 3
3x^3 y^3-72x^2 y^4+432xy^5 (factor) = 3xy^3(x^2 - 24xy + 144y^2) = 3xy^3 * (x - 12y)^2 -[6z-(12z+6)]=6+(5z+3) -[-6z - 6] = 9 + 5z 6z + 6 = 9 + 5z z = 3
